Photos from New York City on Sept. 11, 2001
August 24, 2011 12:57PM
In this Sept. 11, 2001 file photo, United Airlines Flight 175 collides into the south tower of the World Trade Center in New York as smoke billows from the north tower. | AP
Updated: August 30, 2011 10:35AM
Photos from New York City as the World Trade Center buildings collapsed on September 11, 2001.